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Significance and Use
Speech privacy in an open office is dependent on many factors (see Guide E 1374
The results from this test method can be used to determine if the masking sound meets a particular specification.
1.1 This test method specifies the procedures that can be used to evaluate the spatial and temporal uniformity of masking sound in open offices using A-weighted sound levels. It also specifies the procedure for evaluating the masking sound spectrum and level using one-third octave band sound pressure levels.
1.2 The results of this test method can be used to determine if the masking sound meets a particular specification for spatial and temporal uniformity if that specification is written in terms of A-weighted sound levels and if the masking sound meets a particular spectrum shape and level in the office area.
1.3 This test method must not be used to evaluate the acoustical environment in an office space. It is intended only to evaluate the masking sound in an office. This test method, for instance, does not evaluate the low frequency rumble noise found in some offices.
1.4 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ANSI StandardsIEC 61672 -2002 Electroacoustics- Sound Level meters-part 1: specifications
C634 Terminology Relating to Building and Environmental Acoustics
E1374 Guide for Open Office Acoustics and Applicable ASTM Standards
ICS Number Code 91.120.20 (Acoustics in buildings. Sound insulation)
ASTM E1573-09, Standard Test Method for Evaluating Masking Sound in Open Offices Using A-Weighted and One-Third Octave Band Sound Pressure Levels, ASTM International, West Conshohocken, PA, 2009, www.astm.orgBack to Top